Some say it's true. Some say it isn't. But what we know for sure: a virtually unknown blogger has reported that the microblogging service might be trying to solve some of its many problems by acquiring a search service built on its API.

Twitter launches its own BlackBerry app and acquires Tweetie to form the basis for its iPhone app. This dramatic shift in the company's once hands-off approach has ticked off some developers who are afraid they'll be squeezed out.